Aircraft instrumentation system



FIG. 1 is an enlarged front elevation view of an aircraft instrumentation system illustrating my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevation view thereof, the left side elevation being identical thereto;

FIG. 4 is a bottom plan view thereof, and,

FIG. 5 is a rear elevation view thereof. 

The ornamental design for an aircraft instrumentation system, as described and shown. 